Recently I heard a news about the adulteration in banana where yellow banana peels are coated with red dye. Red banana ( Musa acuminata 'Red Dacca) origin South East Asia with red skin and a sweet in taste. Local banana vendors are selling the banana which are coated with red paint on the peel of yellow banana. This is one of the colour adulteration done in bananas. For ripening , the banana are treated with calcium carbide ( CaC2) which can leads to some health issues.Normally bananas are ripened by ethylene gas which is toxic free and safe to use.
Video source which is not in English version